diff --git a/airflow/utils/log/file_task_handler.py b/airflow/utils/log/file_task_handler.py index 50938f96cb0d5..6c8073b005b68 100644 --- a/airflow/utils/log/file_task_handler.py +++ b/airflow/utils/log/file_task_handler.py @@ -306,6 +306,10 @@ def _read( executor_messages: list[str] = [] executor_logs: list[str] = [] served_logs: list[str] = [] + is_running = ti.try_number == try_number and ti.state in ( + TaskInstanceState.RUNNING, + TaskInstanceState.DEFERRED, + ) with suppress(NotImplementedError): remote_messages, remote_logs = self._read_remote_logs(ti, try_number, metadata) messages_list.extend(remote_messages) @@ -320,7 +324,7 @@ def _read( worker_log_full_path = Path(self.local_base, worker_log_rel_path) local_messages, local_logs = self._read_from_local(worker_log_full_path) messages_list.extend(local_messages) - if ti.state in (TaskInstanceState.RUNNING, TaskInstanceState.DEFERRED) and not executor_messages: + if is_running and not executor_messages: served_messages, served_logs = self._read_from_logs_server(ti, worker_log_rel_path) messages_list.extend(served_messages) elif ti.state not in State.unfinished and not (local_logs or remote_logs): @@ -340,15 +344,11 @@ def _read( ) log_pos = len(logs) messages = "".join([f"*** {x}\n" for x in messages_list]) - end_of_log = ti.try_number != try_number or ti.state not in ( - TaskInstanceState.RUNNING, - TaskInstanceState.DEFERRED, - ) if metadata and "log_pos" in metadata: previous_chars = metadata["log_pos"] logs = logs[previous_chars:] # Cut off previously passed log test as new tail out_message = logs if "log_pos" in (metadata or {}) else messages + logs - return out_message, {"end_of_log": end_of_log, "log_pos": log_pos} + return out_message, {"end_of_log": not is_running, "log_pos": log_pos} @staticmethod def _get_pod_namespace(ti: TaskInstance): diff --git a/tests/utils/test_log_handlers.py b/tests/utils/test_log_handlers.py index 8c772c5799f73..30eb480076843 100644 --- a/tests/utils/test_log_handlers.py +++ b/tests/utils/test_log_handlers.py @@ -298,7 +298,7 @@ def test__read_for_k8s_executor(self, mock_k8s_get_task_log, create_task_instanc def test__read_for_celery_executor_fallbacks_to_worker(self, create_task_instance): """Test for executors which do not have `get_task_log` method, it fallbacks to reading - log from worker""" + log from worker. But it happens only for the latest try_number.""" executor_name = "CeleryExecutor" ti = create_task_instance( @@ -308,14 +308,24 @@ def test__read_for_celery_executor_fallbacks_to_worker(self, create_task_instanc execution_date=DEFAULT_DATE, ) ti.state = TaskInstanceState.RUNNING + ti.try_number = 2 with conf_vars({("core", "executor"): executor_name}): fth = FileTaskHandler("") fth._read_from_logs_server = mock.Mock() fth._read_from_logs_server.return_value = ["this message"], ["this\nlog\ncontent"] - actual = fth._read(ti=ti, try_number=1) + actual = fth._read(ti=ti, try_number=2) fth._read_from_logs_server.assert_called_once() - assert actual == ("*** this message\nthis\nlog\ncontent", {"end_of_log": True, "log_pos": 16}) + assert actual == ("*** this message\nthis\nlog\ncontent", {"end_of_log": False, "log_pos": 16}) + + # Previous try_number is from remote logs without reaching worker server + fth._read_from_logs_server.reset_mock() + fth._read_remote_logs = mock.Mock() + fth._read_remote_logs.return_value = ["remote logs"], ["remote\nlog\ncontent"] + actual = fth._read(ti=ti, try_number=1) + fth._read_remote_logs.assert_called_once() + fth._read_from_logs_server.assert_not_called() + assert actual == ("*** remote logs\nremote\nlog\ncontent", {"end_of_log": True, "log_pos": 18}) @pytest.mark.parametrize( "remote_logs, local_logs, served_logs_checked",